Euplotes alatus Kahl, 1932

We consider reports of E. alatus from the territory of Slovakia to be doubtful, as this species is very likely marine (Alekperov et al. 2006; Jiang et al. 2010a). Since there are no permanent slides or micrographs of Slovak populations of E. alatus, their identity cannot be verified and very likely represent misidentifications of E. moebiusi . According to the literature data, this species was found in sediments from a branch of the Danube near Čičov (Matis & Tirjaková 1992) and in the eutrophic Slaná river (Tirjaková 1997a).